A Slimming/Excavating Strategy for Enhanced Intratumoral Penetration of Acid‐Disassemblable NO‐Releasing Nanomedicines
Lingdong Jiang,
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An‐Bang Wu,
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Lingting Zeng
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et al.
Advanced Healthcare Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 5, 2025
Abstract
Poor
tumor
penetration
is
the
major
predicament
of
nanomedicines
that
limits
their
anticancer
efficacy.
The
dense
extracellular
matrix
(ECM)
in
one
barriers
against
deep
nanomedicines.
In
this
work,
a
slimming/excavating
strategy
proposed
for
enhanced
intratumoral
based
on
an
acid‐disassemblable
nanomicelles‐assembled
nanomedicine
and
NO‐mediated
degradation
ECM.
constructed
by
cross‐linking
nanomicelles,
which
are
self‐assembled
with
two
kinds
dendrimers
containing
phenylboronic
acid
lactobionic
acid,
through
borate
esterification.
acidic
microenvironment,
pH‐sensitive
ester
bonds
among
nanomicelles
hydrolyzed,
triggering
disassembly
(≈150
nm)
into
small
(≈25
nm).
response
to
over‐expressed
glutathione
(GSH),
NO
donor
loaded
produces
NO,
mediates
expression
metalloproteinases
ECM
tumor.
By
collaboration
disassembling
behavior
ECM,
designed
can
penetrate
long
distance
tumors.
will
provide
inspiration
overcoming
challenge
penetration.
Language: Английский
Excipients for Cerium Dioxide Nanoparticle Stabilization in the Perspective of Biomedical Applications
Molecules,
Journal Year:
2025,
Volume and Issue:
30(6), P. 1210 - 1210
Published: March 8, 2025
Rare
earth
metal
nanoparticles,
some
of
which
are
already
widely
used
in
medicine,
growing
interest
the
modern
scientific
community.
One
promising
rare
metals
for
biomedical
applications
is
cerium,
specifically
its
oxide
form,
characterized
by
a
higher
level
stability
and
safety.
According
to
number
studies,
cerium
dioxide
has
wide
range
biological
effects
(regenerative,
antimicrobial,
antioxidant,
antitumor),
justifies
potential
application
medicine.
However,
these
their
intensity
vary
significantly
across
studies.
Since
was
it
can
be
assumed
that
not
only
chemical
formula
important,
but
also
physicochemical
parameters
nanoparticles
obtained,
consequently
methods
synthesis
modification
with
use
excipients.
In
this
review,
we
considered
possibilities
using
excipients
(polyacrylate,
polyvinylpyrrolidone,
dextran,
hyaluronic
acid,
chitosan,
polycarboxylic
acids,
lecithin,
phosphatidylcholine)
context
preserving
properties,
as
well
degree
study
combinations
from
point
view
prospect
creating
drugs
based
on
applications.
Language: Английский